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| Welcome to Principia Upper School in St. Louis, Missouri, USA — a high school of about 350 students, all Christian Scientists. Our students this year come from 34 U.S. states and 17 other countries. Here's a glimpse of what makes high school at Principia special: | |
 Academics |
![[Upper School students]](/v1/images/uskids.jpg) |
| Athletics | |
| Boarding | |
| Visiting Program | |
| Admissions | |
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